A woman who admitted killing her first husband says she didn’t do the deed alone, taking the witness stand yesterday to finger spouse number two – a career criminal who she said won her over with his “bad boy image.”

Vanessa Foote Richardson told jurors her childhood sweetheart, Jeffrey Richardson – on trial for murder – lured her into an extramarital love affair, and then planted the seeds for the ultimate betrayal.

The wife, who continues her testimony in Brooklyn Supreme Court this morning, said that her old flame came back into her life in September of 1996, and, within six months, they’d gotten rid of Foote – a 26-year-old Wall Street accountant – married, and started collecting on her former husband’s insurance policy.

In his opening statement, Assistant District Attorney Mark Hale said jurors would hear how Vanessa Richardson and her new beau set up Foote – shooting him in the head on Dec. 21, 1996.